\begin{table}[!htbp] \centering \caption{PCA of group-level traditional institutions indicators}\label{grps.pca.sum} \begin{tabular}{@{\extracolsep{-5pt}}lD{.}{.}{-3}D{.}{.}{-3}D{.}{.}{-3}D{.}{.}{-3}D{.}{.}{-3}D{.}{.}{-3}} \\[-1.8ex]\hline \hline \\[-1.8ex]  & \multicolumn{6}{c}{Component} \\  \\[-1.8ex] \cline{2-7} \\[-1.8ex]& \multicolumn{1}{c}{(1)} & \multicolumn{1}{c}{(2)} & \multicolumn{1}{c}{(3)} & \multicolumn{1}{c}{(4)} & \multicolumn{1}{c}{(5)} & \multicolumn{1}{c}{(6)} \\ \\[-1.8ex]  \hline \\[-1.8ex]  
 Summary statistics: &  &  &  &  &  & \\ 
 \quad Standard deviation & 1.747 & 1.051 & 0.878 & 0.651 & 0.605 & 0.531\\ 
 \quad Proportion of Variance & 0.509 & 0.184 & 0.129 & 0.071 & 0.061 & 0.047\\ 
 \quad Cumulative Proportion & 0.509 & 0.693 & 0.821 & 0.892 & 0.953 & 1.000\\ 
  \\[-1.8ex]\hline \\[-1.8ex] Factor loadings: &  &  &  &  &  & \\ 
 \quad TPI Level & 0.407 & -0.435 & 0.292 & -0.623 & 0.274 & 0.311\\ 
 \quad Institution Index & 0.432 & -0.275 & 0.452 & 0.253 & -0.592 & -0.345\\ 
 \quad Leader Index & 0.451 & 0.399 & 0.044 & -0.038 & 0.516 & -0.606\\ 
 \quad Max Leader & 0.479 & 0.201 & 0.041 & 0.573 & 0.179 & 0.607\\ 
 \quad State-ties Index & 0.388 & 0.435 & -0.446 & -0.422 & -0.516 & 0.130\\ 
 \quad Functions Index & 0.253 & -0.589 & -0.713 & 0.200 & 0.103 & -0.176 
 \\[-1.8ex]  \\ \hline \hline \\[-1.8ex] \end{tabular}  \end{table} 
